Is your sister on drugs? I cant imagine hanging out with junkies and not doing drugs. If so, then, well, that explains it... Des, I know youre one of the nicest people we'll ever meet. Take care of yourself, first...you and your kid come first...My experience has been that no matter what you do for some people they just keep asking for more, and they think you you owe it to them for some reason..I never met your sister, I hope shes not like that, but Ive tried to help lots of people and my experience has been that they have to help themselves as well. It sounds like she's not doing that.you are breaking your *** to help yourself, going to school being a good mother, doing your best. I give you a lot of credit.Who is helping you? You can help her but you cant do everything for her. She has to want to help herself. I know its hard with a baby involved.Maybe if you back off a little bit she'll appreciate you more. And I do think you should be appreciated! YOU ROCK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!